IBM 405 Alphabetic Accounting Machine

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  • Details
  • Description
Date
1934 ca.
Credit Line
Courtesy of the Social Security Administration History Archives
Keywords
Accounting; Unit record equipment; Social Security
Object ID
500004194

This sophisticated “tabulator” could process 150 cards a minute and keep track of multiple sums while printing data on continuous-sheet forms. This was the first IBM accounting machine able to print all the letters as well as numbers.